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SITCSection 5
U.S. imports of inorganic acids, not elsewhere specified (SITC 52236) totaled $22.5M in April 2026, traded with 19 countries.
Importers of Inorganic Acids, Not Elsewhere Specified paid $868K in duties in April 2026 — an effective duty rate of 20% on $4.4M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 2026 dataResidual inorganic acids not captured by more specific SITC headings — such as hydrofluoric acid, hydrobromic acid, and hydroiodic acid — fall under this not-elsewhere-specified category, each carrying distinct hazard profiles and end-use applications. Hydrofluoric acid, for example, is a critical etchant in semiconductor fabrication and glass frosting, while hydrobromic acid serves as a reagent in pharmaceutical synthesis. Because the specific acid identity drives both the applicable hazmat transport class and any dual-use or precursor chemical obligations, precise chemical identification on import documentation is essential. EPA TSCA certification is required for all substances in this grouping.
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Acid mixtures are generally classified by the component that gives the mixture its essential character, which may be the predominant acid by weight or the one driving the primary commercial use. When the mixture does not clearly fall under a more specific heading, the NES category applies, but a licensed customs broker should review the composition to confirm correct classification and applicable duty treatment.
Hydrofluoric acid is subject to EPA TSCA certification and DOT hazardous materials regulations as a highly toxic corrosive. Certain concentrations and quantities may also trigger EPA Risk Management Program (RMP) reporting obligations for the receiving facility. Importers should verify that their domestic storage and handling infrastructure meets applicable EPA and OSHA thresholds before arranging shipment.
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| Country | Imports | Exports | Balance |
|---|---|---|---|
| MEXICO | $15.6M | $1.4M | -$14.1M |
| KOREA, SOUTH | $1.3M | $709K | -$586K |
| CANADA | $240K | $1.7M | +$1.5M |
| CHINA | $1.3M | $432K | -$874K |
| TAIWAN | $916K | $334K | -$582K |
Monthly import values over time